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Early scientific researchers hypothesized that electricity was an invisible fluid that could move through certain substances. Those substances "porous" to this "fluid" were called conductors, while substances impervious to this "fluid" were called insulators .
We now know what electricity is composed of: tiny bits of matter, smaller than atoms. What name do we give these tiny bits of matter? How do these particles of matter relate to whole atoms ?
In terms of these tiny particles, what is the difference between the atoms of conductive substances versus the atoms of insulating substances ? the atoms of insulating substances?
The purpose of this project is to design a device that would remotely control (from a Bluetooth-enabled mobile phone for instance) at least two actuators (e.g. relays and switches).
The receiver uses a 10.7 MHz IF. For cost, power, weight and size reasons, it is desirable to use a single clock oscillator that will provide the frequency reference for the synthesizer, as well as providing the clock for data.
Digital Communications uses a few specific modulation formats. Research at least 5 different applications or standards and explain what modulation format is used and what is the bandwidth over which you need to equalize the channel? Determine the ..
A "ferrite" having a relative permeability of 50 H / m, that operates with flux densities sufficiently small, may be considered a single material. If the magnetic flux density in the material is B = 0.05 T, H and M. halle How to compare the values
A force Farrowbold applied to an object of mass m1 produces an acceleration of 3.40 m/s2. The same force applied to a second object of mass m2 produces an acceleration of1.60 m/s2. If m1 and m2 are combined into one object
Find steady-state error to the unit ramp input. If it is greater than 0.1, design a lag compensator that helps to achieve the steady-state error (to the unit ramp input) no more than 0.1. (Hint: Use Matlab to nd the dominant closed-loop poles.)
a) construct the straight-line Bode plot of the gain. Is this a low-pass, high-pass, bandpass, or bandstop function b) Use the straight-line plot to estimate the maximum gain and the frequency at which it occurs.
A balanced three-phase load is connected to a balanced three-phase supply via a transmission line. What must be the readings on the two wattmeters, the ammeter, and the voltmeter
A DC voltage is connected to a series connected R-L circuit with R=1ohm and L= 1Mh. How long does it take for the circuit to reach 98% of its final state
An FM transmitter delivers to a 75 ohm antenna a signal voltage of V (t)= 1000 sin (10^9t+4 sin 10^4t), determine: (a) carrier frequency; (b) intelligence frequency; (c)modulation index; and (d)total power in FM signal
A lossy transmission line at 1GHz has the following characteristics: Z0= 50.0 ohms alpha= 0.01 dB/m, Betta=8 rad/m. Determine R, L, G and C for the line
stochastic message signal, m(t), is transmitted down a (noiseless) cable channel by PCM, using an 8-bit code. If the ambient signal is equally likely to lie anywhere between its two extremes, (+/- mp), calculate the ration of the mean squared sign..
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